Power, Strength, Ability
The radical and the meaning of this kanji are the same. Both are power.
If you know the radical, you should be feeling fine… No, you should feel powerful!
りょく, りき
ちから
None
Who has the most power of anyone? It's the Power Rangers. They are battling their arch enemy Ricky (りき). They defeat him and lock (りょく) him up, so that he can't hurt anyone ever again.
Know anyone named Ricky (りき), even a famous person like Ricky Ricardo or Ricky Gervais? Imagine that person's face on the monster the Power Rangers are fighting. Now, imagine the Power Rangers locking (りょく) him up. He looks much less scary once he's locked up. Phew.